QUIZ number 2 in Science Grade 7 Chapter 3

Matter and Its Properties: States of matter (solid, liquid, gas), physical and chemical changes, elements, compounds, and mixtures.

1. QUIZ # 2 in SCIENCE

2. Part 1. Multiple Choice Read each question and answer choice carefully and choose the ONE best answer.

3. Which of the following illustrates the arrangement of particles in a solid? A B C

4. 2. What is a solution? A problem that needs to be solved A mixture of two or more substances A type of math equation A chemical reaction

5. 3. What is an example of a solute? Water Alcohol Oil Sugar

6. 4. What is the main characteristic of a soluble solute? It can be dissolve in water It floats in water It evaporates quickly It changes the color of water

7. 5 . Which of the following is an example of a homogeneous mixture? A bowl of cereal with milk Salt water A fruit salad A jar of mixed nuts

8. 6. What is an unsaturated solution? A solution contains the maximum amount of solute A solution that contains less than the maximum amount of solute A solution that contains more than the maximum amount of solute A solution that cannot dissolve any more solute

9. 7 . What is often calls as “Universal solvent”? Coffee Vinegar Water Soda

10. 8 . Which of the following is an example of a physical change? Burning paper Rusting metal Cutting wood Baking a cake

11. 9. Which property does NOT change during a physical change? Shape Size Chemical composition Color

12. 10 . Which of these is an example of a chemical change? Boiling water Mixing salt and water Fireworks exploding Shredding paper

13. Part 2. TRUE or FALSE Write TRUE if the statement is correct and FALSE if not.

14. 11. DEPOSITION

15. 12. EVAPORATION

16. 13. SUBLIMATION

17. 14. MELTING

18. 15. CONDENSATION

19. Part 3. IDENTIFICATION Identify what is being asked.

20. 16. Homogeneous or Heterogeneous? Halo-halo

21. 17. Solid, Liquid or Gas? Sand

22. 18. Homogeneous or Heterogeneous? Cheese Burger

23. 19. Solid, Liquid, or Gas? Steam from boiling water

24. 20. Homogeneous or Heterogeneous? Listerine Mouthwash

25. Part 4. Drawing Draw an illustration of the "Three Main States of Matter“ using particle theory.